Subtract 28/21 from 35/98
1st number: 35/98, 2nd number: 1 7/21
35/98 - 28/21 is -41/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 21 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 98 × 3 = 294,
35/98 = 35 × 3/98 × 3 = 105/294 - Likewise, for the 2nd fraction, since 21 × 14 = 294,
28/21 = 28 × 14/21 × 14 = 392/294 - Subtract the two like fractions:
105/294 - 392/294 = 105 - 392/294 = -287/294 - After reducing the fraction, the answer is -41/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/98-28/21 35/98-56/21 35/98-28/42 35/98-84/21 35/98-28/63